Microsoft Windows Multiple Vulnerabilities (KB5005076)

# SPDX-FileCopyrightText: 2021 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.817743");
  script_version("2025-11-14T15:41:06+0000");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_cve_id("CVE-2021-26424", "CVE-2021-26425", "CVE-2021-26426", "CVE-2021-26432",
                "CVE-2021-26433", "CVE-2021-34480", "CVE-2021-34483", "CVE-2021-34484",
                "CVE-2021-34533", "CVE-2021-34535", "CVE-2021-34537", "CVE-2021-36926",
                "CVE-2021-36927", "CVE-2021-36932", "CVE-2021-36933", "CVE-2021-36936",
                "CVE-2021-36937", "CVE-2021-36942", "CVE-2021-36947", "CVE-2021-34481");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2025-11-14 15:41:06 +0000 (Fri, 14 Nov 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-12-28 20:15:00 +0000 (Thu, 28 Dec 2023)");
  script_tag(name:"creation_date", value:"2021-08-11 13:24:32 +0530 (Wed, 11 Aug 2021)");
  script_name("Microsoft Windows Multiple Vulnerabilities (KB5005076)");

  script_tag(name:"summary", value:"This host is missing a critical security
  update according to Microsoft KB5005076");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present
  on the target host.");

  script_tag(name:"insight", value:"Multiple flaws exist due to:

  - An error in Windows HTML Platform.

  - An error in Server for NFS.

  Please see the references for more information about the vulnerabilities.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to cause denial of service, disclose sensitive information and bypass security
  restrictions.");

  script_tag(name:"affected", value:"- Microsoft Windows 8.1 for 32-bit/x64-based systems

  - Microsoft Windows Server 2012 R2");

  script_tag(name:"solution", value:"The vendor has released updates. Please see
  the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"executable_version");
  script_xref(name:"URL", value:"https://support.microsoft.com/en-us/help/5005076");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("smb_reg_service_pack.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/WindowsVersion");
  exit(0);
}

include("smb_nt.inc");
include("secpod_reg.inc");
include("version_func.inc");
include("secpod_smb_func.inc");

if(hotfix_check_sp(win8_1:1, win8_1x64:1, win2012R2:1) <= 0){
  exit(0);
}

dllPath = smb_get_system32root();
if(!dllPath ){
  exit(0);
}

fileVer = fetch_file_version(sysPath:dllPath, file_name:"spoolsv.exe");
if(!fileVer){
  exit(0);
}

if(version_is_less(version:fileVer, test_version:"6.3.9600.20094"))
{
  report = report_fixed_ver(file_checked:dllPath + "\spoolsv.exe",
                            file_version:fileVer, vulnerable_range:"6.3.9600.20094");
  security_message(data:report);
  exit(0);
}
exit(99);